Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Sideload an Image from a Post-Meta to your attachments
<?php
namespace NicoMartin;
/**
* Media Sideload
* Plugin Name: NM Media Sideload
* Description: Sideload an Image from a Post-Meta to your attachments
* Version: 0.1.0
* Author: Nico Martin
* Author URI: https://nicomartin.ch
* Text Domain: nmsl
* Requires PHP: 5.6
* Requires WP: 4.9
*/
class MediaSideload
{
private $postTypes = [ 'post' ];
private $postMeta = 'slideload-image';
private $postMetaId = '';
private $siteUrl = '';
public function __construct()
{
$this->postTypes = apply_filters('NM\MediaSideload\PostTypes', $this->postTypes);
$this->postMeta = apply_filters('NM\MediaSideload\PostMeta', $this->postMeta);
$this->postMetaId = $this->postMeta . '-nmsl-id';
$this->siteUrl = get_site_url();
}
public function run()
{
add_action('current_screen', function () {
$screen = get_current_screen();
if ($screen->base == 'post' && in_array($screen->post_type, $this->postTypes) && array_key_exists('post', $_GET)) {
$imageId = $this->loadImage($_GET[ 'post' ]);
if (is_wp_error($imageId)) {
add_action('admin_notices', function () use ($imageId) {
?>
<div class="error notice">
<p><?php echo $imageId->get_error_message(); ?></p>
</div>
<?php
});
}
}
});
}
/**
* @param $postId
* @param boolean $returnUrl
*
* @return int|string|\WP_Error
*/
private function loadImage($postId, $returnUrl = false)
{
if (! in_array(get_post_type($postId), $this->postTypes)) {
return new \WP_Error('wrong_post_type', 'Wrong Post Type');
}
$meta = get_post_meta($postId, $this->postMeta, true);
$metaId = get_post_meta($postId, $this->postMetaId, true);
if (! $meta) {
return new \WP_Error('meta_not_exist', 'Post Meta "' . $this->postMeta . '" does not exist');
}
if ($metaId && strpos($meta, $this->siteUrl) === 0) {
// If metaId exists and $meta does start with the site URL
if ($returnUrl) {
return $meta;
}
return $metaId;
}
$imageUrl = esc_url_raw($meta);
$sideloadedId = media_sideload_image($imageUrl, $postId, null, 'id');
if (is_wp_error($sideloadedId)) {
return $sideloadedId;
}
$sideloadedUrl = wp_get_attachment_image_url($sideloadedId, 'full');
update_post_meta($postId, $this->postMetaId, $sideloadedId);
update_post_meta($postId, $this->postMeta, $sideloadedUrl);
if ($returnUrl) {
return $sideloadedUrl;
}
return $sideloadedId;
}
}
$nmMediaSideload = new MediaSideload();
$nmMediaSideload->run();
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.